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Ligia oceanica - 3mm juvenile This one was totally black when I caught it, but had changed its colour (variable pigmentation) by the time I took the images. Common Sea Slater,Geotagged,Ireland,Isopoda,Ligia,Ligia oceanica,Ligiidae,Oniscidea,nl: Havenpissebed Click/tap to enlarge PromotedCountry intro

Ligia oceanica - 3mm juvenile

This one was totally black when I caught it, but had changed its colour (variable pigmentation) by the time I took the images.

    comments (3)

  1. Fascinating! I had no idea they could change color. I found this abstract, which discusses the color changing:

    https://www.ncbi.nlm.nih.gov/pubmed/28312580
    Posted 2 months ago
    1. Yes, there have been some other studies on this as well. I should probably extend our species profile a little to include some of that at some point *rolleyes* ... ;o) Posted 2 months ago
      1. A worthy goal for some point when/if you have time ;P. Posted 2 months ago

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''Ligia oceanica'', the sea slater, common sea slater or sea roach, is a littoral woodlouse in the family Ligiidae ("Rock Slaters").

''L. oceanica'' is oval, twice as long as broad and may reach up to 30 millimetres in length, making it one of the largest oniscid isopods. Its colour may vary from grey to olive-green, and it has large compound eyes and long antennae, ⅔ as long as its body.

''L. oceanica'' is found in temperate waters from Norway to the Mediterranean Sea, and.. more

Similar species: Brood Pouch Crustaceans
Species identified by Pudding4brains
View Pudding4brains's profile

By Pudding4brains

Public Domain
Uploaded Aug 15, 2019. Captured in E End, Co. Clare, Ireland.